《中观心论》及其古注《思择焰》是研究印度古代佛教与其他宗教哲学的极为重要的文献。二者在古代没有汉译，文献中的梵文和藏文资料极具史料价值，一直受到国际学界的高度重视。何欢欢博士的这部专著以文献中佛教中观派对其他印度古代哲学派别的批判为主要研究对象，选题有很强的理论意义，是国内外印度哲学与佛教学研究的前沿课题。作者对有关文献的研究非常深入扎实，从辨认《中观心论》梵文贝叶写本的古代字体入手，同时互勘五版藏文大藏经中的《中观心论》与《思择焰》的相关三品，完成了文本的校订和汉译，在文献整理方面作出了突出的成绩。此外，这一专著在研究中参考了大量国际一流学者的研究成果，使用资料丰富。作者认为，《中观心论》及其古注《思择焰》对数论、胜论、吠檀多三大外道思想的转述大多直接来源于各派外道的根本经典，即《数论颂》、《胜论经》、奥义书等，较少受到其他注释性文献的影响；两部文献在批判数论、胜论、吠檀多三派思想理论时，主要使用了四种批判手法，即因明三支法、中观归谬法、圣言说教法、譬喻说理法；文献中对三派外道思想的批判归根结底是要否定其“有我论”和“主体解脱”论，推行中观派的“无我论”和“实相涅槃”的思想。这些观点是作者的创新性研究成果，具有明显的学术价值。这一专著对材料的分析细致，主要观点正确，论证充分，逻辑性强，写作规范。由于所研究的文献具有较高难度，翻译文本以现在的面目呈现出来己属不易。从总体上说，此专著的写作是成功的，提出了自己的独到见解，填补了本学科研究领域中的空白。联系到作者在文献学方面的贡献，可以说这是一部较优秀的学术专著。当然，印度古代哲学与佛教哲学内容艰深，而这一专著涉及的问题又极为复杂，要彻底理清佛教与其他主要印度哲学派别的关系及相关思想并不是短期内能够做到的。由于种种原因，要真正完全解决其中的一些重要问题需要长期的不断努力。书中的观点也只是一家之言，都是可以继续探讨的。希望这部书的出版能引起更多的人关注印度古代的宗教哲学，把相关研究推向深入。何欢欢博士学风端正，学习刻苦，追求上进，基础理论扎实，专门知识丰富，通晓多种语言（梵、藏、英、日等），具有较强的科研能力，是本专业青年学者中的佼佼者，曾受到国外著名学者的高度评价，是不可多得的人才。这部专著是其数年艰苦努力，呕心沥血之作。书中虽然不可能没有疏漏或不当之处，但在这个年龄段能做出这样的研究成果，实属难能可贵。我祝她能再接再厉，成为我国研究东方哲学的栋梁之才。姚卫群2012年7月于北京大学中关园

The Theory of the Middle Mind and its ancient annotation Thinking Flame are extremely important documents for the study of ancient Indian Buddhism and other religious philosophies. There was no Chinese translation of the two in ancient times, and the Sanskrit and Tibetan materials in the documents are of great historical value and have always been highly valued by the international academic community. Dr. He Huanhuan's monograph mainly focuses on the criticism of Buddhist meso-schools and other ancient Indian philosophical schools in the literature, and the topic selection has strong theoretical significance, and is a frontier topic in Indian philosophy and Buddhist studies at home and abroad. The author has studied the relevant documents very deeply and solidly, starting from identifying the ancient fonts of the Sanskrit Bayeux manuscript of the "Treatise on the Middle Mind", and at the same time inter-examining the relevant three products of the "Theory of the Middle Mind" and the "Flame of Thought" in the five editions of the Tibetan Tripitaka, completed the revision and Chinese translation of the text, and made outstanding achievements in the collation of literature. In addition, this monograph refers to the research results of a large number of world-class scholars in the research, and uses rich materials. The author believes that most of the paraphrasing of the three major foreign ideas of number theory, victory theory, and Vedanta in the "Theory of the Middle Mind" and its ancient annotation "Si Ze Yan" are directly derived from the fundamental classics of various schools of foreign paths, namely the "Ode to Number Theory", "The Victory Classic", and the Upanishads, etc., and are less influenced by other explanatory literature. When criticizing the three schools of thought and theory of number theory, victory theory, and Vedanta, the two texts mainly use four critical techniques, namely, the method of the three branches of the Cause Ming, the method of meso-attribution fallacy, the method of holy word teaching, and the method of figurative reasoning; In the final analysis, the criticism of the three schools of foreign thought is to deny their theories of "self-theory" and "subject liberation", and to promote the "selflessness" and "nirvana of reality" ideas of the Middle School. These views are the author's innovative research results and have obvious academic value. This monograph analyzes the material meticulously, the main points are correct, the arguments are sufficient, the logic is strong, and the writing is standardized. Due to the difficulty of the literature studied, it is not easy to translate the text into its current form. On the whole, the writing of this monograph is successful, and it presents its own unique insights and fills the gaps in the research field of this discipline. Linked to the author's contribution to philology, it can be said that this is an excellent academic monograph. Of course, the content of ancient Indian philosophy and Buddhist philosophy is difficult, and the issues covered in this monograph are extremely complex, and it is not possible to completely clarify the relationship between Buddhism and other major schools of Indian philosophy and related ideas in the short term. For a variety of reasons, truly and completely resolving some of these important issues will require long-term and continuous efforts. The views in the book are only family words, and they can be continued to be discussed. It is hoped that the publication of this book will attract more people's attention to the ancient Indian religious philosophy and promote the relevant research in depth. Dr. He Huanhuan has a correct learning style, studies hard, pursues progress, solid basic theory, rich professional knowledge, is fluent in many languages (Sanskrit, Tibetan, English, Japanese, etc.), has strong scientific research ability, is the best among young scholars in this specialty, has been highly praised by famous foreign scholars, is a rare talent. This monograph is the culmination of years of hard work. Although it is impossible to be free of omissions or improprieties in the book, it is rare to produce such research results at this age. I wish her continued efforts to become a pillar of the study of Eastern philosophy in our country. Yao Weiqun at Zhongguanchuang, Peking University in July 2012（AI翻译）